Plant culture method and support substrate applied thereto

Abstract

A culture method of growing plants or plant seedlings on a culture medium provided on a support substrate which is comprised of an upper layer made of small stone and activated charcoal integrally solidified by synthetic resin in such a manner as to maintain water permeability therein and a lower layer in the form of a water permeable reinforcement layer integrally formed with the upper layer.

What is claimed is: 
     
       1. A method for growing plants, comprising the steps of: providing a culture medium for planting a selected plant therein; and   providing a support substrate at least on top of which said culture medium is positioned, said step of providing said support substrate including the steps of forming an upper, water permeable layer having a predetermined amount of activated charcoal based on said selected plant in said culture medium and a non-magnetic, dielectric, granular component mixed with a resin and a hardening agent, and forming a lower, water permeable reinforcing layer, wherein   a water permeability of said support substrate is defined greater than a water permeability of said culture medium.   
     
     
       2. A method according to claim 1, wherein said step of forming said upper layer further includes mixing said non-magnetic, dielectric, granular component with said predetermined amount of activated charcoal at a ratio of 0.5 to 1.0 part by weight. 
     
     
       3. A method according to claim 1, wherein said non-magnetic, dielectric, granular component is in the form of dried small stones. 
     
     
       4. A method according to claim 1, wherein said non-magnetic, dielectric, granular component is in the form of crushed articles of inorganic material. 
     
     
       5. A method according to claim 1, wherein said non-magnetic, dielectric, granular component is in the form of crushed articles of high-polymer compounds. 
     
     
       6. A method according to claim 1, wherein said step of providing said culture medium includes providing said culture medium in the form of a seedbed placed on said support substrate. 
     
     
       7. A method according to claim 1, wherein said step of providing said culture medium includes providing said culture medium in a planter for planting the selected plant therein and placing the planter on said support substrate. 
     
     
       8. A method according to claim 1, wherein said step of providing said support substrate includes placing said support substrate on the internal bottom of a planter in such a manner that said upper, water permeable layer is located above said lower, water permeable reinforcing layer.